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Home > Products > Discrete Semiconductor Products > Transistors > FETs, MOSFETs > FETs, MOSFETs

Vishay Siliconix IRFR120TRLPBF

Name: IRFR120TRLPBF
Brand: Vishay Siliconix
SKU: IRFR120TRLPBF
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: IRFR120TRLPBF

Manufacturer:: Vishay Siliconix

Category:: FETs, MOSFETs

Package:: TO-252-3, DPAK (2 Leads + Tab), SC-63

Datasheet:: IRFR120TRLPBF.pdf

Description:: MOSFET N-CH 100V 7.7A DPAK

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Product details

Overview

IRFR120TRLPBF from Vishay Siliconix is a 100 V, 7.7 A N-channel surface-mount power MOSFET in DPAK (TO-252) package, featuring 0.27 Ω R_DS(on) at V_GS = 10 V, 16 nC total gate charge, and repetitive avalanche rating-designed for DC-DC converters, motor control, and load switching in industrial power supplies.

For engineers reviewing the IRFR120TRLPBF datasheet, IRFR120TRLPBF pinout, IRFR120TRLPBF application, or IRFR120TRLPBF equivalent, key selection criteria include its 100 V V_DS, 7.7 A continuous drain current at T_C = 25 °C, 3.0 °C/W junction-to-case thermal resistance, and DPAK-compatible PCB layout with recommended 0.224" × 0.420" copper pad per Vishay AN826.

Technical Context

This third-generation TrenchFET® MOSFET uses optimized silicon structure to achieve low R_DS(on) while maintaining robust dynamic dV/dt capability (5.5 V/ns) and unclamped inductive switching survivability up to 210 mJ single-pulse avalanche energy. Its gate threshold voltage range (2.0–4.0 V) ensures reliable turn-on with standard 10 V logic-level drive.

The device integrates a fast-recovery body diode (t_rr = 130–260 ns, Q_rr = 0.65–1.3 μC) and exhibits low output capacitance (C_oss = 150 pF) and reverse transfer capacitance (C_rss = 34 pF), enabling high-efficiency hard-switching operation in 100 kHz–500 kHz power stages.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	100 V - Maximum blocking voltage for primary-side switch in 48 V input DC-DC converters and 24 V motor drivers.
R_DS(on) @ V_GS = 10 V	0.27 Ω - Contributes ≤ 1.6 W conduction loss at 7.7 A, enabling compact thermal design on FR-4 PCBs.
I_D Continuous @ T_C = 25 °C	7.7 A - Supports ≥ 100 W load switching without heatsink in DPAK-mounted applications.
Q_g Total	16 nC - Determines gate drive power requirement; compatible with low-cost 1-A peak gate drivers.
E_AS Single-Pulse Avalanche	210 mJ - Enables robustness against inductive kickback in relay/snubberless solenoid drivers.
R_thJC	3.0 °C/W - Allows direct thermal coupling to PCB copper pour or small heatsink for sustained 4.9 A operation at T_C = 100 °C.
t_r/t_f	27 ns / 17 ns - Supports fast switching transitions with minimal overlap loss in synchronous buck topologies.

Pinout & Package

DPAK (TO-252) surface-mount package with exposed drain tab for thermal and electrical connection; 3-pin configuration optimized for high-current PCB routing and automated assembly.

Pin/Terminal	Circuit Role	Design Meaning
Pin 1 (G)	Gate	Control terminal requiring ≤ ±100 nA leakage; driven by 10 V logic signal to fully enhance channel.
Pin 2 (D)	Drain	Main power output terminal; electrically and thermally connected to exposed metal tab (pin 2 functionally tied to tab).
Pin 3 (S)	Source	Power return path and gate reference node; must be low-inductance connection to minimize switching noise.

Key Features

Feature	Design Value
Repetitive avalanche rated	Enables reliable operation under transient overloads (I_AR = 7.7 A, E_AR = 4.2 mJ) without derating in motor phase-legs.
Dynamic dV/dt rating	5.5 V/ns immunity prevents false turn-on during high-speed switching in noisy industrial environments.
Fast switching performance	6.8 ns turn-on delay + 27 ns rise time supports >300 kHz PWM frequency with low switching loss.
Low Q_gd/Q_g ratio	7.7/16 = 48% - Reduces Miller plateau duration, improving controllability during hard commutation.
Surface-mount (DPAK)	Compatible with vapor-phase and infrared reflow; requires 0.224" × 0.420" minimum copper pad per AN826 for thermal reliability.

Applications

DC-DC Converter Primary Switch	Brushed DC Motor High-Side Driver
Use Scenario: 48 V input, 12 V output synchronous buck converter in telecom power shelf. IC Role / Device Role / Timing Role: Main power switch handling 7.7 A continuous current with 100 kHz–300 kHz PWM. Use Value: 0.27 Ω R_DS(on) limits conduction loss to <1.6 W; 16 nC Q_g enables efficient gate driving with integrated controller.	Use Scenario: 24 V brushed motor control in automated gate actuator with H-bridge topology. IC Role / Device Role / Timing Role: High-side switch controlling motor direction and braking via PWM duty cycle. Use Value: Repetitive avalanche rating absorbs inductive flyback during PWM off-time; 5.5 V/ns dV/dt immunity prevents shoot-through.
Industrial Load Switch	LED Driver Power Stage
Use Scenario: Remote-controlled 100 W lighting or HVAC load switched from PLC I/O module. IC Role / Device Role / Timing Role: Solid-state replacement for electromechanical relay, operating in on/off mode. Use Value: 7.7 A continuous rating handles 100 W @ 24 V; 210 mJ E_AS withstands surge currents during cold-load insertion.	Use Scenario: Constant-current LED driver for streetlight with 48 V bus and 350 mA output. IC Role / Device Role / Timing Role: Linear or PWM-adjustable pass element regulating LED string current. Use Value: Low R_DS(on) minimizes dropout voltage; fast t_r/t_f enables clean PWM dimming without LED flicker.

DC-DC Converter Primary Switch

Brushed DC Motor High-Side Driver

Use Scenario: 48 V input, 12 V output synchronous buck converter in telecom power shelf.

IC Role / Device Role / Timing Role: Main power switch handling 7.7 A continuous current with 100 kHz–300 kHz PWM.

Use Value: 0.27 Ω R_DS(on) limits conduction loss to <1.6 W; 16 nC Q_g enables efficient gate driving with integrated controller.

Use Scenario: 24 V brushed motor control in automated gate actuator with H-bridge topology.

IC Role / Device Role / Timing Role: High-side switch controlling motor direction and braking via PWM duty cycle.

Use Value: Repetitive avalanche rating absorbs inductive flyback during PWM off-time; 5.5 V/ns dV/dt immunity prevents shoot-through.

Industrial Load Switch

LED Driver Power Stage

Use Scenario: Remote-controlled 100 W lighting or HVAC load switched from PLC I/O module.

IC Role / Device Role / Timing Role: Solid-state replacement for electromechanical relay, operating in on/off mode.

Use Value: 7.7 A continuous rating handles 100 W @ 24 V; 210 mJ E_AS withstands surge currents during cold-load insertion.

Use Scenario: Constant-current LED driver for streetlight with 48 V bus and 350 mA output.

IC Role / Device Role / Timing Role: Linear or PWM-adjustable pass element regulating LED string current.

Use Value: Low R_DS(on) minimizes dropout voltage; fast t_r/t_f enables clean PWM dimming without LED flicker.

Equivalent & Alternatives

The following parts are listed as comparable options for similar N-channel power MOSFET applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
IRFR120PbF-BE3	Same die, identical specs, but supplied in bulk (non-tape-and-reel) packaging.	No functional difference; suitable where automated pick-and-place is not required.	Select IRFR120TRLPBF for SMT production lines requiring tape-and-reel delivery.
SiHFR120-GE3	Same Vishay die, RoHS-compliant halogen-free variant with identical V_DS, R_DS(on), and Q_g.	Identical performance; chosen when halogen-free compliance is mandated by end-equipment standards.	Choose SiHFR120-GE3 if IPC-1752 or IEC 61249-2-21 compliance is required.

Compared with IRFR120TRLPBF, IRFR120PbF-BE3 offers identical electrical behavior but lacks tape-and-reel convenience for high-volume SMT, while SiHFR120-GE3 delivers identical performance with halogen-free construction-making IRFR120TRLPBF the optimal choice for standard lead-free, tape-fed manufacturing without material compliance constraints.

Availability

IRFR120TRLPBF is available at Aetrix Electronics and suitable for industrial motor drives, DC-DC power conversion, and solid-state relay replacements requiring stable component supply across multi-year production cycles.

Supply support for IRFR120TRLPBF includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Vishay Siliconix designs and manufactures discrete semiconductors including MOSFETs, diodes, and optoelectronics, with global manufacturing and reliability validation across multiple qualified sites.

The IRFR120TRLPBF belongs to Vishay's third-generation TrenchFET® power MOSFET family, engineered specifically for high-efficiency, high-reliability switching in industrial and automotive power systems.

FAQ

What is the maximum continuous drain current for IRFR120TRLPBF at 100 °C case temperature?

The IRFR120TRLPBF supports 4.9 A continuous drain current at T_C = 100 °C, as specified in the Absolute Maximum Ratings table. This derating reflects thermal limitations of the DPAK package and must be verified against actual PCB layout and ambient conditions using R_thJC = 3.0 °C/W and R_thJA = 50 °C/W (PCB mount).

Does IRFR120TRLPBF have a built-in body diode, and what are its key parameters?

Yes, the IRFR120TRLPBF integrates a monolithic body diode with 7.7 A continuous forward current rating (I_S), 2.5 V forward voltage (V_SD) at 7.7 A and 25 °C, and reverse recovery characteristics of t_rr = 130–260 ns and Q_rr = 0.65–1.3 μC-critical for freewheeling in buck and half-bridge topologies.

What is the gate threshold voltage range for IRFR120TRLPBF, and how does it affect drive requirements?

The IRFR120TRLPBF has a gate threshold voltage (V_GS(th)) range of 2.0 V to 4.0 V at I_D = 250 μA. This ensures full enhancement at standard 10 V gate drive while allowing compatibility with 5 V logic controllers when used with appropriate margin; however, 10 V is recommended for minimum R_DS(on) and optimal switching speed.

Is IRFR120TRLPBF suitable for avalanche operation, and what are the limits?

Yes, the IRFR120TRLPBF is repetitively avalanche rated with I_AR = 7.7 A and E_AR = 4.2 mJ, and single-pulse rated for E_AS = 210 mJ. These ratings assume pulse width limited by junction temperature and require adherence to the SOA curve in Figure 8; operation beyond these limits risks permanent damage.

What PCB pad layout is recommended for IRFR120TRLPBF in DPAK (TO-252) package?

Vishay Application Note AN826 specifies a minimum 0.224" × 0.420" (5.69 mm × 10.67 mm) copper pad for the drain tab of IRFR120TRLPBF to ensure adequate thermal dissipation and solder joint reliability. Thermal vias under the tab and connection to internal ground/power planes are strongly recommended for >2 W power dissipation.

IRFR120TRLPBF Specifications

Product attributes: Attribute value

Manufacturer:: Vishay Siliconix

Series:: -

Package/Case:: TO-252-3, DPAK (2 Leads + Tab), SC-63

Packaging:: Tape & Reel (TR)

Product Status:: Active

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 100 V

Current - Continuous Drain (Id) @ 25°C:: 7.7A (Tc)

Drive Voltage (Max Rds On, Min Rds On):: 10V

Rds On (Max) @ Id, Vgs:: 270mOhm @ 4.6A, 10V

Vgs(th) (Max) @ Id:: 4V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 16 nC @ 10 V

Vgs (Max):: ±20V

Input Capacitance (Ciss) (Max) @ Vds:: 360 pF @ 25 V

FET Feature:: -

Power Dissipation (Max):: 2.5W (Ta), 42W (Tc)

Operating Temperature:: -55°C ~ 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: DPAK

IRFR120TRLPBF FAQ

1.How can I place an order for IRFR120TRLPBF through Aetrix?

Please submit a Request for Quotation (RFQ) for IRFR120TRLPBF on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for IRFR120TRLPBF reliable?

The price and inventory of IRFR120TRLPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IRFR120TRLPBF is usually 5 days.

3.What payment methods are accepted for IRFR120TRLPBF?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IRFR120TRLPBF transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for IRFR120TRLPBF?

IRFR120TRLPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your IRFR120TRLPBF order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for IRFR120TRLPBF?

For technical support, including IRFR120TRLPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IRFR120TRLPBF requirements.

6.How does Aetrix verify that IRFR120TRLPBF is sourced from the original manufacturer or authorized distributors?

All IRFR120TRLPBF products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that IRFR120TRLPBF meets industry standards.

7.What is the process for return or replacement of IRFR120TRLPBF?

All IRFR120TRLPBF units undergo pre-shipment inspection (PSI). If there is an issue with IRFR120TRLPBF, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The IRFR120TRLPBF part is unused and in its original packaging.

Return procedure for IRFR120TRLPBF:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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